Since the nail is the exchange area of the Yin energy channel and the Yang energy channel, the area of the half-moon has plenty of vessels and nerve endings. In the following paragraphs, let us analyze the corresponding area of the half-moon of the five fingers.

The half-moon mark of the thumb corresponds to the lung and spleen. If the half-moon mark of the thumb shows pink, it represents the decreased pancreatic function. The owner is easy to get cold, and etc. It will lead to the disease of diabetes finally.

The half-moon mark of the index finger corresponds to the stomach and the intestine. If the half-moon mark of the index finger shows pink, it represents the decreased function of the digestive system, malabsorption, and the decreased appetite.

The half-moon mark of the middle finger corresponds to the nerve system. If the half-moon mark of the middle finger shows pink, it represents mental instability and overwork. The owner is easy to get dizzy and insomnia.

The half-moon mark of the ring finger corresponds to the Endocrine system. If the half-moon mark of the ring finger shows pink, it represents the “San Jiao Jing” that appears abnormally. There is an imbalance between the Yin and the Yang. The owner has bad blood circulation.

The half-moon mark of the little finger corresponds to the heart and the kidney. If the half-moon mark of the little finger shows pink, it represents the bad blood circulation of the heart.